Tension for braiding-carriers.



` HE@ erarne im@ 'r oifrrcn.

SIMON W. WARDWELL, oF PRovm'ENonHonEISLAND.. 1-

'jfy

B elitr known :th-at! I, Simon 'lVARnW'LQ a'` citizen of the UnitedStates, residingwat Providence, in the countyY ofProvilence and State'of VRhode Island, have :invented certain new and` useful Improvementsvin Tensions for Braiding-Carriers, otl,which the lfolloniing is aspecification.

My intention is an finipr'oved tensionde Vice for braiding machinesy and'ite purpose is to provide for'` a WideA vrnge pt" tension variation, aWider range than usual ot' take lupl action 'bc-fore releasing theSuppl;v to deliver'yarn andprotection tothe parte incase theA yarn isentangled on the' Suppl v"or has vbeen tied to the cop-ftubevorbobbin atWinding.

1 The'novelfand meritorious,featuree of my invention are fully disclosedinthe following Specification and accompanying drawings, whichlatter'ehow respectively; i

Figure 1 a front. eleiation of my deviee; .Fiev 2, f1. pleur-ien: oftheSeme; 3; 4:15 and 6,'details of construction.

The tension `d eYice coniprisea bracket 2,v

having-a -hub 3 i n Whichie Secured a stud 4,

,en Which issniounteti `the. yarnfsupply holder 5. he V latten,consistslof a stern 8 with supply from, longitudinal dieplacenient, Iand a ,base'11, preferably of in iertecl cupv torni. The supplyv holder isrestrainedffroni .turning in a .direction to deliver yarn by .a paw'l:l

or' detentl2 which engages teeth; 13 -of the base. .1 1.IPreferablyjhese teeth are within the .interior of 'the base,v thepaiifl, ,12..extend- Aing ,beloiyanl beneath the riniwlel. of the latterand up, ,Within the base to engage the teeth. The pati'l isy preferablyintegral with .engagement with the eiipplfyiliolder, teeth '113i Attheupper end ,oftlie rock cured an 'arm 18;,x made 'thi-n sheet inetafl' inbehalf. of lightness and strength, f AdJacent vthey rockshaft l5 isparallel roclieh'ftgo,

vTENSION FOB v.israeliani whose bottoni4 1s formedase c rankl. 21` andf.

"shaft, and theextreiityisformeda ,arin QQ'is curved and the guid armf'l .stud 4see Fier. 4. Freinthisbearingfthe" which the index 3l engage.The arm QTi'sV` `sfo formed that it niust besprung upward;

the cut 'in'the rock Shaft and;beingxhelcl-i Spring tension'jvith theentremity ofthe firme C11-oleRRIERS;y

vSpecioation of etters Patent. '-:Ptelllted an, ,17, 5191141' piicatinied'iaay 3, 1909. f serial ifa-'493,711' 'e' A:

at' theupper end of Which'islanarrfiV QZalv pf uma', einem meer Adjacentthe' am, 22;. vis a spring take-up'or 'guide' 23`,`n end of which isformed as aj hub' 24,` folf the' Q5' to'receire theyarn from the tendssulo'stan'tialhr tangent. thereto, So tli in' yielding to the pull'ofthe Varn' itfg adlially confor'ins to the cl'irve'o'fztlie the'degre'eof Vsuch conformation Clependi upon the resistance opposed"hyjfeaidt'aiThev resistance issu'ppl'ie'd'by the Spring@ which 'is anchored to theadjustable arniQT/' The latt'er is preferably form'edof "round A Wire'with' a trunnion portion which' eiii ters a" socket bearing- 2S)iftheend'. ffthe 70 arm'Q extends to theed'ge SO of thebracket, whichedge is concentricwvitlrthe'hub nely is formed. vover saifledge aSanl'indeix" The upper surface of the hracketat tlieieg 30 ,is for-inedwith graduatedlnotcheeitwith lastically, in'order to engage't'heindex-31,

with the' edge i30, 'and the elastic fre" an ef" i? on' theirrespective" rock "Slitts byy 1ro`vel1f8 5 means." Referring tow'thef'rm22 which; Witlijrespect vtoI the modeilastening, lis'lilie1 thearm 18,itis, in development, of substa'nltially'x triangular fform,'and' lthe vbase enclis? formulata ysharp right angle tothebed-yftfo: constitute .akey'y SQL-While the nietallaclj a'centf.. isi formed cylindewieLaboutmthei i-ockfshaft5f'A to' form a` hub. In the rock Shaft" 20def-ajt'. keylway to receive `'the keyaportion' 34C lofi.; eff" the armfand `f also a. v*peripheral cut`4V "36; 1.95 Through'an' opening 37"in` the "a'rm,"the vguide Y..

,Q3 extends, its hubporti'on Q4 engaging' 1 rein by theelasticlever-actionof thefarin;l itsy point of Contactl 38 Withthearm-.22 10U serving as. a' fulcrum, andv enga-gement funden.

22 maintaining the engagement, F 5f .Thearm 1S i`ssimilarly secured bylkeying to its rock shaft-15 and is secured. from longitudi'naldisplacement by thesprin'g tongue 3 9 which engagse a transverse cut-40, Fig. 6.-

flhejspriiig( which holds the paWl 12 in normal engagement withthe-supply holder 1s .secured by one end 41 passing through therock'shaft 15,While the other ,end bears- :against'the standard 42iii-Which the r'ock shafts'l landi 20 have bearings.

' Secured in the top of the standard 42 andl extending'close tothe pathof movement of i up'-- parts.' `"Occasionally it occurs v "fis used, and'pecially Where a 'fasciculation up and tension are event.v Therefore-the ".guide -25 nearliits terminus of eXtremetensionis aknife ,43. Thepurpose ofthis 'knife is to sever the yarn in case it 1s -so strong asto jeopardize the tension and takel that in `Winding la cop orbobbin theoperator` has tiedV otherwise'secured the yarn. tothe 'of-'such yarns isemployed as is usual, the sensitivelyresponsive elements of the take-'-.to deflect the take-up 23 too much it is en-v countered by the knifeand cut bgffore the vso the pawl 12 with the supply holder, A40

parts'. are unduly strained. Connected with thecrank 21 is a rod whichextends through a bearing 45. This .rod appertains to stop deviceswhich-fare 'i of the pavvl with thera-tchet teeth.' There tensionadjustment is-i'na'de atthe pawl or directly affects the pawl,`the rangeof take'- p action bythe yarn is limited by the extent patvl engagementthe ratchet teeth must be of large pitch.v In case the pawl, inreturning to enga-gement with its ratchet, just misses a tooth, then aneedless and 'un-4 desirable excess of ya-rn is given off `to the extentof' onetooth, or a proportional amount dependent on the relativediameters f the ratchet and of the yarn mass'of the supply.

imperfect braidingp By divorcing the tensionandtake-up adjustment fromthe pawl release, much finer ratchet'teeth may be ein Would causerelease .off the paw-l. -other hand, the sprin'g y2 6 may 'be set at itsvextreme tension under which tlie'resistance 715 tube or'ebobbin..-Where a large, strong yarn` endangered by such 'an' the knife 43 issuppliedvso thatl in case the tendency of the yarn is 4t supply holderfrom `rotation, butif'slightlyto relinquish such restraint, of i an armto release the vyarn through a substantial rangeA before ef- "o with itsratchet teeth. To secure necessary range of such yarn action deepengagement of ratchet and paw-l 1s necessary, and consequently lply`This 'irregularity of yarn release causes irregular tension andproportionally' ployed, and tension irregularities can be more closelydlfl'erentiated and reduced.:

4By varying the tension .of the spring 26- 'the taire-up effect-may bevariously modified; Set with a-\ j ery light tension the arm22 may bemoved with scarcely any deflection ofthe lji guide-arm '23 Whatever, inwhich case the arm ,22 would ride relatively close to the arm-18 and a.slight variation of tension On the ofthe arm 22 to movementwould be sotirely to`it before it wouldoy iel d. ut'thel great advantagelies inthefact that the adyJustable variability 'of the spring 26 is made'availableoverall the range pf movement of ythe guide 25 rather than tothat small portion measured by the extent of .engagement fgreat thatthe'arm 23 would. conf rm enof the paul-12 withthe .ratchet teeth 13.

Wifhout unsungmy-seif .to theprecise form of construction, lI claim:

' 1 In'a tension device `for'braiding machines, the combination with' arotatable'sup-V ply holder, la detent tol'restrain'the supply lholderfrom rotation and al spring therefor- -of substantially uniformresistance, of an arm-movable by the yarn to release the de# telit, aspringto Oppose the movement of the arm and means to v'ary the intensityIof' such opposition.

" 2. In a tension Adevice forfbraiding ma cliines, the combination Witha rotatable supaway restrain movable from the axis ofthe holder todetent movable bythe fecting such release. 3. Ina 'tension device forbraiding `ma ply holder. from rotation, of an armmove'd ply holder,and-a detent pivoted to move "19,5 chines,-the combination with.` arotatable supf `ply holder, and a detent to restrainn the sup'- bytheyarn to releasethe .d etentand means to vary lthe range of movementbefore acting 'on the; pawl.

`1.4. In a tension deyicejfor' ahraiding-mm chine,

off. arm

exclusive of the' detent f to' Acontrol .thel` tension andwhen thelattelfexceeds a prescribed the Combination with. agrrbtjatablemgholder, and a detenttherefon'ofmeans,

limit, Ato disengage-thedetent from 'the supply holder, and means tovary thel limit-at Whichsuch disengagement-shall occur.

5. In a tension device-for 'braiding ma-V chines, the combination with arotatable sup-V ply holder, a detent to' restrain the 'supplyAholder-'from rotation and anarm connected lwith thedetent, of a curvedarrngzadjacent-- thearmaforesaid, a spring armh yarn eye', adace'nt thecurved,

oy the yarn to shit't the curved arm into contact .'vitl'i the first armto release the detent, and means to oppose the curved arm'to the actionof the spi-'ing guide arm.

6. in' a tension device forl braiding ma- 'vchines, -the combinationwith a rotatable supply holder, a detent to restrain the supply. holderfrom rotation and -an arm con- .iti

nected with the detent, of a curved-arm ad.

vjacent the arm aforesaid',a 'spi'ingarmhav- 'ing a guide, adjacent thec'urved arm, movable by the yarn to shift the curved arm into Contactwith the iirst arin to release Jthe detent-,a spring to opposethe curvedarm to the action of the spring guide arm, and

means to adjust the degree ofvresistanoe op*` posed by .the curved arm'.

7. ln a tension device for -braiding inalcl'iiiies, the combination witha rotatable supply holder "having ratchet teeth Within its base, rookshaft havinga pavvl extending beloivand beneathth'ei'rim of the base andenga ging the'ratchet teeth aforesaid Within the 'supply holder base, aspring to engage the pawl' with .the teetlnand 6an arm 18 se- .curedtothe roel; shaft, of an adjacent rock shaft an arni22 .secured to saidarm, andv a spring guide arm 'acted upon by the yarny to engage the arm22v with the arm 18 to reso lease the panvl,v

. 8. ln'a tension device for a braiding ma- A chine, the combinationWith a rotatable sup- 'ply holderv having ratchet teeth Within its base,a roch shaft, having a paivl extending bei-ow and beneath 'the' rim ofthe base and engaging the iat het teeth aforesaid, a spring to engage te'pawl With the' teethand anfarmi secured to the rock shaft, of anadjacent rock shaft 20 having a crank 2l, divergent arms 22 and 23,secured to the rock shaft 20, one'of which has a guide enl gaged by theyarn, a spring 26 engaging the crank 21 to maintain the arms 22 and 21.3away from the arm 18, and oppose to the nide arm thel resistance of thearm diverg- Ving therefrom, and an arm 27 to which the 26 is anchoredand by which act-ion is varied; Y

iin a tension device for .braidingfmaf the combination with a rotatablesupider, a detent to restrain the supplyv hine, the combination With arotatable yarn v :supply 'holder with a .base of inverted cupiv :r fromrotation, and an arm connected i the detent, of divergent arms'adjacenm.forinliaving interior teeth,a rock shaft having a lpavvl, a spring-toact on the' rock shaft to engage the pa'ivl with -the teeth and an armsecured to the ro'cl shaft, ot' a second arm `adjacent the first, 'andmeans whereby the tivo arms are engaged by the yarn from the' supplyholder to shift the paWl.

11. 'In' a tension device for braiding machines, the combination with avrotatable yarn supply -holder and a detent to control the action of thesupply holder, of an arm 18v connected with the detent, a second arm 22adjacent the` `iirst and normally away from it, a guide-arm 23 for theyarn given od by the supplyholder and means actuated by movement of theguide-arm 23 .with the varying tensionyon the yarn to cause engagementof said arms 18 and 22 and consequent action of the detent to permit andprevent delivery of yarn-by the supply holder.

12,. In a tension device for braiding machinas, ythe' combination with arotatable 'yarn supply holder and a detent tovcontrol 'the action oftheholder, of an arm connected With-the detent, a second arm'adjacentthefirst, a resilient'ly mounted yarn guide adjacent the second arm,elastically susceptible to slight variations in tension of the yarn, anda. spring to permit movement of `the secl ond arm With .the uide toengage the first arm to actuate the etent. e

13. In a tension device for braiding ma# chines, the combination with arotatable yarnsu'pply holderand detent t-o-control the action of theholder,'of lan arm and connections to controlthe detent, a second armcontrolled in position by the acti-on of the yarn given oi'by the copholder, and hav' ing range of action sufficient to engage the first arm,and a resiliently mounted guide having a degree of movement independentof bot-h arms and a range of movement suicient to .engage the second armWith the first; A

and move both for thepurpose and in the manner specified. 14C. ln atension device for braiding machines, the combination With arotatablefcop holder, and detentto control the cop holder i actingWithin the base'of the latter, of an gage and cause action of the 4firstarm.

l5. In a tension device .for braiding ma-' chinos, thel combination witha supply -arm and connections tocontrol the'detentf' and a second armmovedby the yarn'to enholder, a detent' tou control the delivery of 'iyarn from `thesupplyholde`r 4and a knife tol sever'the yarn in case-ofuncontrollable resistance to delivery of the lat-ter. U

16. In a tension' device for a braiding ma# chine', the'4 combinationwith' a supply holder,

[a ldetent to control the delivery of yarnv from thesupply holder andatalienpt'ojmaintain'v the yarn taut, `:of a :lnife adjacent the'patll-gof movement of the take-up to sever the yarn should uncontrollableresistance to delivery oecu'r. l

' 17. In a tension device for braiding machines, the combination with a.supply hololer,'u detent to control the delivery of yarrnfrom the supplyholder and a take-up engaging a loop of the yarn to keep it taut, of aknife extending Within the loop of yarn to lsever the latter before itcan move *the 1o take-up unduly.

In testimony whereof I ax my signature in presence 'of two Witnesses..

SIMON W. WARDWELL.

Witneses:

GRACE W. BROWN, JAMES F. MGENERY.

